D1313331322132333132333132312312323331323223313113313231323231111   >>    D131333132213233313233313231231232333132322331311331323132323111   <<    D1313331322132333132333132312312323331323223313113313231323231113   >>      D1313331322132333132333132312312323331323223313113313231323231112   >>